模拟msn消息提示(右下角)

<if condition="$bbuserinfo[pmunread] >=1">
<SCRIPT language=JavaScript>
window.onload = getMsg;
window.onresize = resizeDiv;
window.onerror = function(){}
var divTop,divLeft,divWidth,divHeight,docHeight,docWidth,objTimer,i = 0;
function getMsg()
{
try{
divTop = parseInt(document.getElementById("gm175").style.top,10)
divLeft = parseInt(document.getElementById("gm175").style.left,10)
divHeight = parseInt(document.getElementById("gm175").offsetHeight,10)
divWidth = parseInt(document.getElementById("gm175").offsetWidth,10)
docWidth = document.body.clientWidth;
docHeight = document.body.clientHeight;
document.getElementById("gm175").style.top = parseInt(document.body.scrollTop,10) + docHeight + 10;// divHeight
document.getElementById("gm175").style.left = parseInt(document.body.scrollLeft,10) + docWidth - divWidth
document.getElementById("gm175").style.visibility="visible"
objTimer = window.setInterval("moveDiv()",10)
}
catch(e){}
}
function resizeDiv()
{
i+=1
if(i>9000) closeDiv()
try{
divHeight = parseInt(document.getElementById("gm175").offsetHeight,10)
divWidth = parseInt(document.getElementById("gm175").offsetWidth,10)
docWidth = document.body.clientWidth;
docHeight = document.body.clientHeight;
document.getElementById("gm175").style.top = docHeight - divHeight + parseInt(document.body.scrollTop,10)
document.getElementById("gm175").style.left = docWidth - divWidth + parseInt(document.body.scrollLeft,10)
}
catch(e){}
}
function moveDiv()
{
try
{
if(parseInt(document.getElementById("gm175").style.top,10) <= (docHeight - divHeight + parseInt(document.body.scrollTop,10)))
{
window.clearInterval(objTimer)
objTimer = window.setInterval("resizeDiv()",1)
}
divTop = parseInt(document.getElementById("gm175").style.top,10)
document.getElementById("gm175").style.top = divTop - 1
}
catch(e){}
}
function closeDiv()
{
document.getElementById('gm175').style.visibility='hidden';
if(objTimer) window.clearInterval(objTimer)
}
</SCRIPT>
<DIV id=gm175
style="BORDER-RIGHT: #455690 1px solid; BORDER-TOP: #a6b4cf 1px solid; Z-INDEX: 99999; LEFT: 0px; VISIBILITY: hidden; BORDER-LEFT: #a6b4cf 1px solid; WIDTH: 180px; BORDER-BOTTOM: #455690 1px solid; POSITION: absolute; TOP: 0px; HEIGHT: 116px; BACKGROUND-COLOR: #c9d3f3">
<TABLE style="BORDER-TOP: #ffffff 1px solid; BORDER-LEFT: #ffffff 1px solid"
cellSpacing=0 cellPadding=0 width="100%" bgColor=#cfdef4 border=0>
  <TBODY>
  <TR>
    <TD
    style="FONT-SIZE: 12px; BACKGROUND-IMAGE: url(msgTopBg.gif); COLOR: #0f2c8c"
    width=30 height=24></TD>
    <TD
    style="PADDING-LEFT: 4px; FONT-WEIGHT: normal; FONT-SIZE: 12px; BACKGROUND-IMAGE: url(msgTopBg.gif); COLOR: #1f336b; PADDING-TOP: 4px"
    vAlign=center width="100%">短消息提示：</TD>
    <TD
    style="PADDING-RIGHT: 2px; BACKGROUND-IMAGE: url(msgTopBg.gif); PADDING-TOP: 2px"
    vAlign=center align=right width=19><SPAN title=关闭
      style="FONT-WEIGHT: bold; FONT-SIZE: 12px; CURSOR: hand; COLOR: red; MARGIN-RIGHT: 4px"
      onclick=closeDiv()>×</SPAN><!-- <IMG title=关闭 style="CURSOR: hand" onclick=closeDiv() hspace=3 src="msgClose.jpg"> --></TD></TR>
  <TR>
    <TD
    style="PADDING-RIGHT: 1px; BACKGROUND-IMAGE: url(1msgBottomBg.jpg); PADDING-BOTTOM: 1px"
    colSpan=3 height=90>
      <DIV
      style="BORDER-RIGHT: #b9c9ef 1px solid; PADDING-RIGHT: 13px; BORDER-TOP: #728eb8 1px solid; PADDING-LEFT: 13px; FONT-SIZE: 12px; PADDING-BOTTOM: 13px; BORDER-LEFT: #728eb8 1px solid; WIDTH: 100%; COLOR: #1f336b; PADDING-TOP: 18px; BORDER-BOTTOM: #b9c9ef 1px solid; HEIGHT: 100%">您有<FONT
      color=#ff0000>$bbuserinfo[pmunread]</FONT>封新短消息<BR><BR>
      <DIV style="WORD-BREAK: break-all" align=center><A
      href="./private.php?"><FONT
      color=#ff0000>【阅读】</FONT></A></DIV></DIV></TD></TR></TBODY></TABLE></DIV>
</if>